The MS9312 offers pro-level features including a low profile 12 base with a 3 section shaft to provide flexibility for your height setting needs. Each Height adjustment clutch is designed for easy and secure gripping. The shaft is compatible with all standard 5/8 -27 threaded mic accessories. To aid with precise mic positioning the upper shaft features an oversized knurled locking washer that keeps your mic clip exactly where desired. The shaft fastens to the base via a solid M20 steel lug and locking washer. This coarse threading provides an excellent combination of fast assembly and secure connection while extending thread wear far beyond fine-thread designs. The shaft is interchangeable with other On-Stage M20 products which allow for use in many different applications.